US11356989B2 - Reporting aperiodic CSI via PUCCH - Google Patents
Reporting aperiodic CSI via PUCCH Download PDFInfo
- Publication number
- US11356989B2 US11356989B2 US16/615,534 US201816615534A US11356989B2 US 11356989 B2 US11356989 B2 US 11356989B2 US 201816615534 A US201816615534 A US 201816615534A US 11356989 B2 US11356989 B2 US 11356989B2
- Authority
- US
- United States
- Prior art keywords
- csi
- pucch
- feedback
- resources
- trigger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 59
- 238000004891 communication Methods 0.000 claims description 58
- 230000005540 biological transmission Effects 0.000 claims description 39
- 238000005259 measurement Methods 0.000 claims description 26
- 230000004044 response Effects 0.000 claims description 16
- 230000015654 memory Effects 0.000 claims description 13
- 230000000737 periodic effect Effects 0.000 claims description 5
- 239000000969 carrier Substances 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 34
- 238000001228 spectrum Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 9
- 230000011664 signaling Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 238000013468 resource allocation Methods 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008520 organization Effects 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 description 1
- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 208000037918 transfusion-transmitted disease Diseases 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
-
- H04W72/0413—
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
-
- H04W72/042—
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
Definitions
- aspects of the present disclosure relate generally to wireless communication systems, and more particularly, to reporting aperiodic channel state information (CSI) via a physical uplink control channel (PUCCH).
- CSI channel state information
- PUCCH physical uplink control channel
- Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast, and the like. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing the available network resources. Such networks, which are usually multiple access networks, support communications for multiple users by sharing the available network resources.
- UTRAN Universal Terrestrial Radio Access Network
- the UTRAN is the radio access network (RAN) defined as a part of the Universal Mobile Telecommunications System (UMTS), a third generation (3G) mobile phone technology supported by the 3rd Generation Partnership Project (3GPP).
- UMTS Universal Mobile Telecommunications System
- 3GPP 3rd Generation Partnership Project
- multiple-access network formats include Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FDMA) networks, Orthogonal FDMA (OFDMA) networks, and Single-Carrier FDMA (SC-FDMA) networks.
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal FDMA
- SC-FDMA Single-Carrier FDMA
- a wireless communication network may include a number of base stations or node Bs that can support communication for a number of user equipments (UEs).
- a UE may communicate with a base station via downlink and uplink.
- the downlink (or forward link) refers to the communication link from the base station to the UE
- the uplink (or reverse link) refers to the communication link from the UE to the base station.
- a base station may transmit data and control information on the downlink to a UE and/or may receive data and control information on the uplink from the UE.
- a transmission from the base station may encounter interference due to transmissions from neighbor base stations or from other wireless radio frequency (RF) transmitters.
- RF radio frequency
- a transmission from the UE may encounter interference from uplink transmissions of other UEs communicating with the neighbor base stations or from other wireless RF transmitters. This interference may degrade performance on both the downlink and uplink.
- a method of wireless communication includes receiving, by a UE, a feedback configuration to report aperiodic channel state information (A-CSI) feedback using a physical uplink control channel (PUCCH), receiving, by the UE, a CSI trigger to report A-CSI feedback, wherein the CSI trigger includes one of: a dedicated downlink control indicator (DCI) for the A-CSI feedback or a group common DCI, determining, by the UE, channel condition information associated with the A-CSI feedback in response to the CSI trigger, and reporting, by the UE to a base station, the A-CSI feedback using the PUCCH.
- DCI dedicated downlink control indicator
- an apparatus configured for wireless communication includes means for receiving, by a UE, a feedback configuration to report A-CSI feedback using a PUCCH, means for receiving, by the UE, a CSI trigger to report A-CSI feedback, wherein the CSI trigger includes one of: a dedicated downlink control indicator (DCI) for the A-CSI feedback or a group common DCI, means for determining, by the UE, channel condition information associated with the A-CSI feedback in response to the CSI trigger, and means for reporting, by the UE to a base station, the A-CSI feedback using the PUCCH.
- DCI dedicated downlink control indicator
- a non-transitory computer-readable medium having program code recorded thereon.
- the program code further includes code to receive, by a UE, a feedback configuration to report A-CSI feedback using a PUCCH, code to receive, by the UE, a CSI trigger to report A-CSI feedback, wherein the CSI trigger includes one of: a dedicated downlink control indicator (DCI) for the A-CSI feedback or a group common DCI, code to determine, by the UE, channel condition information associated with the A-CSI feedback in response to the CSI trigger, and code to report, by the UE to a base station, the A-CSI feedback using the PUCCH.
- DCI dedicated downlink control indicator
- an apparatus configured for wireless communication.
- the apparatus includes at least one processor, and a memory coupled to the processor.
- the processor is configured to receive, by a UE, a feedback configuration to report A-CSI feedback using a PUCCH, code to receive, by the UE, a CSI trigger to report A-CSI feedback, wherein the CSI trigger includes one of: a dedicated downlink control indicator (DCI) for the A-CSI feedback or a group common DCI, code to determine, by the UE, channel condition information associated with the A-CSI feedback in response to the CSI trigger, and code to report, by the UE to a base station, the A-CSI feedback using the PUCCH.
- DCI dedicated downlink control indicator
- FIG. 1 is a block diagram illustrating details of a wireless communication system.
- FIG. 2 is a block diagram illustrating a design of a base station and a UE configured according to one aspect of the present disclosure.
- FIG. 3 is a block diagram illustrating a wireless communication system including base stations that use directional wireless beams.
- FIG. 4 is a block diagram illustrating transmission slots in an NR network.
- FIG. 5 is a block diagram illustrating example blocks executed to implement one aspect of the present disclosure.
- FIG. 6 is a block diagram illustrating a gNB and UE configured according to one aspect of the present disclosure.
- FIG. 7 is a block diagram illustrating a gNB and UE configured according to one aspect of the present disclosure.
- FIG. 8 is a block diagram illustrating a gNB and UE configured according to one aspect of the present disclosure.
- FIG. 9 is a block diagram illustrating a gNB and UE configured according to one aspect of the present disclosure.
- FIG. 10 is a block diagram illustrating a gNB and UE configured according to one aspect of the present disclosure.
- FIG. 11 is a block diagram illustrating a gNB and UE configured according to one aspect of the present disclosure.
- FIG. 12 is a block diagram illustrating a gNB and UE configured according to one aspect of the present disclosure.
- FIG. 13 is a block diagram illustrating a gNB and UE configured according to one aspect of the present disclosure.
- FIGS. 14A-14C are block diagrams illustrating a gNB and UE configured according to aspects of the present disclosure.
- FIG. 15 is a block diagram illustrating a UE configured according to one aspect of the present disclosure.
- wireless communications networks This disclosure relates generally to providing or participating in authorized shared access between two or more wireless communications systems, also referred to as wireless communications networks.
- the techniques and apparatus may be used for wireless communication networks such as code division multiple access (CDMA) networks, time division multiple access (TDMA) networks, frequency division multiple access (FDMA) networks, orthogonal FDMA (OFDMA) networks, single-carrier FDMA (SC-FDMA) networks, LTE networks, GSM networks, 5 th Generation (5G) or new radio (NR) networks, as well as other communications networks.
- CDMA code division multiple access
- TDMA time division multiple access
- FDMA frequency division multiple access
- OFDMA orthogonal FDMA
- SC-FDMA single-carrier FDMA
- LTE long-term evolution
- GSM Global System for Mobile communications
- 5G 5 th Generation
- NR new radio
- An OFDMA network may implement a radio technology such as evolved UTRA (E-UTRA), IEEE 802.11, IEEE 802.16, IEEE 802.20, flash-OFDM and the like.
- E-UTRA evolved UTRA
- GSM Global System for Mobile Communications
- LTE long term evolution
- UTRA, E-UTRA, GSM, UMTS and LTE are described in documents provided from an organization named “3rd Generation Partnership Project” (3GPP), and cdma2000 is described in documents from an organization named “3rd Generation Partnership Project 2” (3GPP2).
- 3GPP 3rd Generation Partnership Project
- 3GPP long term evolution LTE
- UMTS universal mobile telecommunications system
- the 3GPP may define specifications for the next generation of mobile networks, mobile systems, and mobile devices.
- the present disclosure is concerned with the evolution of wireless technologies from LTE, 4G, 5G, NR, and beyond with shared access to wireless spectrum between networks using a collection of new and different radio access technologies or radio air interfaces.
- 5G networks contemplate diverse deployments, diverse spectrum, and diverse services and devices that may be implemented using an OFDM-based unified, air interface.
- further enhancements to LTE and LTE-A are considered in addition to development of the new radio technology for 5G NR networks.
- the 5G NR will be capable of scaling to provide coverage (1) to a massive Internet of things (IoTs) with an ultra-high density (e.g., ⁇ 1 M nodes/km 2 ), ultra-low complexity (e.g., ⁇ 10 s of bits/sec), ultra-low energy (e.g., ⁇ 10+ years of battery life), and deep coverage with the capability to reach challenging locations; (2) including mission-critical control with strong security to safeguard sensitive personal, financial, or classified information, ultra-high reliability (e.g., ⁇ 99.9999% reliability), ultra-low latency (e.g., ⁇ 1 ms), and users with wide ranges of mobility or lack thereof; and (3) with enhanced mobile broadband including extreme high capacity (e.g., ⁇ 10 Tbps/km 2 ), extreme data rates (e.g., multi-Gbps rate, 100+ Mbps user experienced rates), and deep awareness with advanced discovery and optimizations.
- IoTs Internet of things
- ultra-high density e.g., ⁇ 1 M nodes/
- the 5G NR may be implemented to use optimized OFDM-based waveforms with scalable numerology and transmission time interval (TTI); having a common, flexible framework to efficiently multiplex services and features with a dynamic, low-latency time division duplex (TDD)/frequency division duplex (FDD) design; and with advanced wireless technologies, such as massive multiple input, multiple output (MIMO), robust millimeter wave (mmWave) transmissions, advanced channel coding, and device-centric mobility.
- TTI numerology and transmission time interval
- subcarrier spacing may occur with 15 kHz, for example over 1, 5, 10, 20 MHz, and the like bandwidth.
- subcarrier spacing may occur with 30 kHz over 80/100 MHz bandwidth.
- the subcarrier spacing may occur with 60 kHz over a 160 MHz bandwidth.
- subcarrier spacing may occur with 120 kHz over a 500 MHz bandwidth.
- the scalable numerology of the 5G NR facilitates scalable TTI for diverse latency and quality of service (QoS) requirements. For example, shorter TTI may be used for low latency and high reliability, while longer TTI may be used for higher spectral efficiency.
- QoS quality of service
- 5G NR also contemplates a self-contained integrated subframe design with uplink/downlink scheduling information, data, and acknowledgement in the same subframe.
- the self-contained integrated subframe supports communications in unlicensed or contention-based shared spectrum, adaptive uplink/downlink that may be flexibly configured on a per-cell basis to dynamically switch between uplink and downlink to meet the current traffic needs.
- an aspect disclosed herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways.
- an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein.
- such an apparatus may be implemented or such a method may be practiced using other structure, functionality, or structure and functionality in addition to or other than one or more of the aspects set forth herein.
- a method may be implemented as part of a system, device, apparatus, and/or as instructions stored on a computer readable medium for execution on a processor or computer.
- an aspect may comprise at least one element of a claim.
- FIG. 1 is a block diagram illustrating 5G network 100 including various base stations and UEs configured according to aspects of the present disclosure.
- the 5G network 100 includes a number of base stations 105 and other network entities.
- a base station may be a station that communicates with the UEs and may also be referred to as an evolved node B (eNB), a next generation eNB (gNB), an access point, and the like.
- eNB evolved node B
- gNB next generation eNB
- Each base station 105 may provide communication coverage for a particular geographic area.
- the term “cell” can refer to this particular geographic coverage area of a base station and/or a base station subsystem serving the coverage area, depending on the context in which the term is used.
- a base station may provide communication coverage for a macro cell or a small cell, such as a pico cell or a femto cell, and/or other types of cell.
- a macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions with the network provider.
- a small cell such as a pico cell, would generally cover a relatively smaller geographic area and may allow unrestricted access by UEs with service subscriptions with the network provider.
- a small cell such as a femto cell, would also generally cover a relatively small geographic area (e.g., a home) and, in addition to unrestricted access, may also provide restricted access by UEs having an association with the femto cell (e.g., UEs in a closed subscriber group (CSG), UEs for users in the home, and the like).
- a base station for a macro cell may be referred to as a macro base station.
- a base station for a small cell may be referred to as a small cell base station, a pico base station, a femto base station or a home base station. In the example shown in FIG.
- the base stations 105 d and 105 e are regular macro base stations, while base stations 105 a - 105 c are macro base stations enabled with one of 3 dimension (3D), full dimension (FD), or massive MIMO.
- Base stations 105 a - 105 c take advantage of their higher dimension MIMO capabilities to exploit 3D beamforming in both elevation and azimuth beamforming to increase coverage and capacity.
- Base station 105 f is a small cell base station which may be a home node or portable access point.
- a base station may support one or multiple (e.g., two, three, four, and the like) cells.
- the 5G network 100 may support synchronous or asynchronous operation.
- the base stations may have similar frame timing, and transmissions from different base stations may be approximately aligned in time.
- the base stations may have different frame timing, and transmissions from different base stations may not be aligned in time.
- the UEs 115 are dispersed throughout the wireless network 100 , and each UE may be stationary or mobile.
- a UE may also be referred to as a terminal, a mobile station, a subscriber unit, a station, or the like.
- a UE may be a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a tablet computer, a laptop computer, a cordless phone, a wireless local loop (WLL) station, or the like.
- PDA personal digital assistant
- WLL wireless local loop
- a UE may be a device that includes a Universal Integrated Circuit Card (UICC).
- a UE may be a device that does not include a UICC. In some aspects.
- UICC Universal Integrated Circuit Card
- UEs that do not include UICCs may also be referred to as internet of everything (IoE) devices.
- IoE internet of everything
- UEs 115 a - 115 d are examples of mobile smart phone-type devices accessing 5G network 100
- a UE may also be a machine specifically configured for connected communication, including machine type communication (MTC), enhanced MTC (eMTC), narrowband IoT (NB-IoT) and the like.
- UEs 115 e - 115 k are examples of various machines configured for communication that access 5G network 100 .
- a UE may be able to communicate with any type of the base stations, whether macro base station, small cell, or the like. In FIG.
- a lightning bolt (e.g., communication links) indicates wireless transmissions between a UE and a serving base station, which is a base station designated to serve the UE on the downlink and/or uplink, or desired transmission between base stations, and backhaul transmissions between base stations.
- base stations 105 a - 105 c serve UEs 115 a and 115 b using 3D beamforming and coordinated spatial techniques, such as coordinated multipoint (CoMP) or multi-connectivity.
- Macro base station 105 d performs backhaul communications with base stations 105 a - 105 c , as well as small cell, base station 105 f .
- Macro base station 105 d also transmits multicast services which are subscribed to and received by UEs 115 c and 115 d .
- Such multicast services may include mobile television or stream video, or may include other services for providing community information, such as weather emergencies or alerts, such as Amber alerts or gray alerts.
- 5G network 100 also support mission critical communications with ultra-reliable and redundant links for mission critical devices, such UE 115 e , which is a drone. Redundant communication links with UE 115 e include from macro base stations 105 d and 105 e , as well as small cell base station 105 f .
- UE 115 f thermometer
- UE 115 g smart meter
- UE 115 h wearable device
- 5G network 100 may communicate through 5G network 100 either directly with base stations, such as small cell base station 105 f , and macro base station 105 e , or in multi-hop configurations by communicating with another user device which relays its information to the network, such as UE 115 f communicating temperature measurement information to the smart meter, UE 115 g , which is then reported to the network through small cell base station 105 f.
- 5G network 100 may also provide additional network efficiency through dynamic, low-latency TDD/FDD communications, such as in a vehicle-to-vehicle (V2V) mesh network between UEs 115 i - 115 k communicating with macro base station 105 e.
- V2V vehicle-to-vehicle
- FIG. 2 shows a block diagram of a design of a base station 105 and a UE 115 , which may be one of the base station and one of the UEs in FIG. 1 .
- a transmit processor 220 may receive data from a data source 212 and control information from a controller/processor 240 .
- the control information may be for the PBCH, PCFICH, PHICH, PDCCH, EPDCCH, MPDCCH etc.
- the data may be for the PDSCH, etc.
- the transmit processor 220 may process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively.
- the transmit processor 220 may also generate reference symbols, e.g., for the PSS, SSS, and cell-specific reference signal.
- a transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, and/or the reference symbols, if applicable, and may provide output symbol streams to the modulators (MODs) 232 a through 232 t .
- Each modulator 232 may process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream.
- Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal.
- Downlink signals from modulators 232 a through 232 t may be transmitted via the antennas 234 a through 234 t , respectively.
- the antennas 252 a through 252 r may receive the downlink signals from the base station 105 and may provide received signals to the demodulators (DEMODs) 254 a through 254 r , respectively.
- Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal to obtain input samples.
- Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols.
- a MIMO detector 256 may obtain received symbols from all the demodulators 254 a through 254 r , perform MIMO detection on the received symbols if applicable, and provide detected symbols.
- a receive processor 258 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 115 to a data sink 260 , and provide decoded control information to a controller/processor 280 .
- a transmit processor 264 may receive and process data (e.g., for the PUSCH) from a data source 262 and control information (e.g., for the PUCCH) from the controller/processor 280 .
- the transmit processor 264 may also generate reference symbols for a reference signal.
- the symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by the modulators 254 a through 254 r (e.g., for SC-FDM, etc.), and transmitted to the base station 105 .
- the uplink signals from the UE 115 may be received by the antennas 234 , processed by the demodulators 232 , detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 115 .
- the processor 238 may provide the decoded data to a data sink 239 and the decoded control information to the controller/processor 240 .
- the controllers/processors 240 and 280 may direct the operation at the base station 105 and the UE 115 , respectively.
- the controller/processor 240 and/or other processors and modules at the base station 105 may perform or direct the execution of various processes for the techniques described herein.
- the controllers/processor 280 and/or other processors and modules at the UE 115 may also perform or direct the execution of the functional blocks illustrated in FIG. 5 , and/or other processes for the techniques described herein.
- the memories 242 and 282 may store data and program codes for the base station 105 and the UE 115 , respectively.
- a scheduler 244 may schedule UEs for data transmission on the downlink and/or uplink.
- Wireless communications systems operated by different network operating entities may share spectrum.
- a network operating entity may be configured to use an entirety of a designated shared spectrum for at least a period of time before another network operating entity uses the entirety of the designated shared spectrum for a different period of time.
- certain resources e.g., time
- a network operating entity may be allocated certain time resources reserved for exclusive communication by the network operating entity using the entirety of the shared spectrum.
- the network operating entity may also be allocated other time resources where the entity is given priority over other network operating entities to communicate using the shared spectrum.
- These time resources, prioritized for use by the network operating entity may be utilized by other network operating entities on an opportunistic basis if the prioritized network operating entity does not utilize the resources. Additional time resources may be allocated for any network operator to use on an opportunistic basis.
- Access to the shared spectrum and the arbitration of time resources among different network operating entities may be centrally controlled by a separate entity, autonomously determined by a predefined arbitration scheme, or dynamically determined based on interactions between wireless nodes of the network operators.
- UE 115 and base station 105 may operate in a shared radio frequency spectrum band, which may include licensed or unlicensed (e.g., contention-based) frequency spectrum.
- UEs 115 or base stations 105 may traditionally perform a medium-sensing procedure to contend for access to the frequency spectrum.
- UE 115 or base station 105 may perform a listen before talk (LBT) procedure such as a clear channel assessment (CCA) prior to communicating in order to determine whether the shared channel is available.
- LBT listen before talk
- CCA clear channel assessment
- a CCA may include an energy detection procedure to determine whether there are any other active transmissions.
- a device may infer that a change in a received signal strength indicator (RSSI) of a power meter indicates that a channel is occupied.
- RSSI received signal strength indicator
- a CCA also may include detection of specific sequences that indicate use of the channel.
- another device may transmit a specific preamble prior to transmitting a data sequence.
- an LBT procedure may include a wireless node adjusting its own backoff window based on the amount of energy detected on a channel and/or the acknowledge/negative-acknowledge (ACK/NACK) feedback for its own transmitted packets as a proxy for collisions.
- ACK/NACK acknowledge/negative-acknowledge
- base stations 105 and UEs 115 may be operated by the same or different network operating entities.
- an individual base station 105 or UE 115 may be operated by more than one network operating entity.
- each base station 105 and UE 115 may be operated by a single network operating entity. Requiring each base station 105 and UE 115 of different network operating entities to contend for shared resources may result in increased signaling overhead and communication latency.
- FIG. 3 illustrates an example of a timing diagram 300 for coordinated resource partitioning.
- the timing diagram 300 includes a superframe 305 , which may represent a fixed duration of time (e.g., 20 ms).
- Superframe 305 may be repeated for a given communication session and may be used by a wireless system such as 5G network 100 described with reference to FIG. 1 .
- the superframe 305 may be divided into intervals such as an acquisition interval (A-INT) 310 and an arbitration interval 315 .
- A-INT acquisition interval
- arbitration interval 315 may be subdivided into sub-intervals, designated for certain resource types, and allocated to different network operating entities to facilitate coordinated communications between the different network operating entities.
- the arbitration interval 315 may be divided into a plurality of sub-intervals 320 .
- the superframe 305 may be further divided into a plurality of subframes 325 with a fixed duration (e.g., 1 ms). While timing diagram 300 illustrates three different network operating entities (e.g., Operator A, Operator B, Operator C), the number of network operating entities using the superframe 305 for coordinated communications may be greater than or fewer than the number illustrated in timing diagram 300 .
- the A-INT 310 may be a dedicated interval of the superframe 305 that is reserved for exclusive communications by the network operating entities.
- each network operating entity may be allocated certain resources within the A-INT 310 for exclusive communications.
- resources 330 - a may be reserved for exclusive communications by Operator A, such as through base station 105 a
- resources 330 - b may be reserved for exclusive communications by Operator B, such as through base station 105 b
- resources 330 - c may be reserved for exclusive communications by Operator C, such as through base station 105 c . Since the resources 330 - a are reserved for exclusive communications by Operator A, neither Operator B nor Operator C can communicate during resources 330 - a , even if Operator A chooses not to communicate during those resources.
- the wireless nodes of Operator A may communicate any information desired during their exclusive resources 330 - a , such as control information or data.
- a network operating entity When communicating over an exclusive resource, a network operating entity does not need to perform any medium sensing procedures (e.g., listen-before-talk (LBT) or clear channel assessment (CCA)) because the network operating entity knows that the resources are reserved. Because only the designated network operating entity may communicate over exclusive resources, there may be a reduced likelihood of interfering communications as compared to relying on medium sensing techniques alone (e.g., no hidden node problem).
- LBT listen-before-talk
- CCA clear channel assessment
- the A-INT 310 is used to transmit control information, such as synchronization signals (e.g., SYNC signals), system information (e.g., system information blocks (SIBs)), paging information (e.g., physical broadcast channel (PBCH) messages), or random access information (e.g., random access channel (RACH) signals).
- control information such as synchronization signals (e.g., SYNC signals), system information (e.g., system information blocks (SIBs)), paging information (e.g., physical broadcast channel (PBCH) messages), or random access information (e.g., random access channel (RACH) signals).
- SIBs system information blocks
- PBCH physical broadcast channel
- RACH random access channel
- resources may be classified as prioritized for certain network operating entities.
- Resources that are assigned with priority for a certain network operating entity may be referred to as a guaranteed interval (G-INT) for that network operating entity.
- G-INT guaranteed interval
- the interval of resources used by the network operating entity during the G-INT may be referred to as a prioritized sub-interval.
- resources 335 - a may be prioritized for use by Operator A and may therefore be referred to as a G-INT for Operator A (e.g., G-INT-OpA).
- resources 335 - b may be prioritized for Operator B
- resources 335 - c may be prioritized for Operator C
- resources 335 - d may be prioritized for Operator A
- resources 335 - e may be prioritized for Operator B
- resources 335 - f may be prioritized for operator C.
- the various G-INT resources illustrated in FIG. 3 appear to be staggered to illustrate their association with their respective network operating entities, but these resources may all be on the same frequency bandwidth. Thus, if viewed along a time-frequency grid, the G-INT resources may appear as a contiguous line within the superframe 305 . This partitioning of data may be an example of time division multiplexing (TDM). Also, when resources appear in the same sub-interval (e.g., resources 340 - a and resources 335 - b ), these resources represent the same time resources with respect to the superframe 305 (e.g., the resources occupy the same sub-interval 320 ), but the resources are separately designated to illustrate that the same time resources can be classified differently for different operators.
- TDM time division multiplexing
- a network operating entity When resources are assigned with priority for a certain network operating entity (e.g., a G-INT), that network operating entity may communicate using those resources without having to wait or perform any medium sensing procedures (e.g., LBT or CCA). For example, the wireless nodes of Operator A are free to communicate any data or control information during resources 335 - a without interference from the wireless nodes of Operator B or Operator C.
- a certain network operating entity e.g., a G-INT
- that network operating entity may communicate using those resources without having to wait or perform any medium sensing procedures (e.g., LBT or CCA).
- LBT or CCA medium sensing procedures
- a network operating entity may additionally signal to another operator that it intends to use a particular G-INT. For example, referring to resources 335 - a , Operator A may signal to Operator B and Operator C that it intends to use resources 335 - a . Such signaling may be referred to as an activity indication. Moreover, since Operator A has priority over resources 335 - a , Operator A may be considered as a higher priority operator than both Operator B and Operator C. However, as discussed above, Operator A does not have to send signaling to the other network operating entities to ensure interference-free transmission during resources 335 - a because the resources 335 - a are assigned with priority to Operator A.
- a network operating entity may signal to another network operating entity that it intends not to use a particular G-INT. This signaling may also be referred to as an activity indication. For example, referring to resources 335 - b , Operator B may signal to Operator A and Operator C that it intends not to use the resources 335 - b for communication, even though the resources are assigned with priority to Operator B. With reference to resources 335 - b , Operator B may be considered a higher priority network operating entity than Operator A and Operator C. In such cases, Operators A and C may attempt to use resources of sub-interval 320 on an opportunistic basis.
- the sub-interval 320 that contains resources 335 - b may be considered an opportunistic interval (O-INT) for Operator A (e.g., O-INT-OpA).
- O-INT opportunistic interval
- resources 340 - a may represent the O-INT for Operator A.
- the same sub-interval 320 may represent an O-INT for Operator C with corresponding resources 340 - b .
- Resources 340 - a , 335 - b , and 340 - b all represent the same time resources (e.g., a particular sub-interval 320 ), but are identified separately to signify that the same resources may be considered as a G-INT for some network operating entities and yet as an O-INT for others.
- Operator A and Operator C may perform medium-sensing procedures to check for communications on a particular channel before transmitting data. For example, if Operator B decides not to use resources 335 - b (e.g., G-INT-OpB), then Operator A may use those same resources (e.g., represented by resources 340 - a ) by first checking the channel for interference (e.g., LBT) and then transmitting data if the channel was determined to be clear.
- resources 335 - b e.g., G-INT-OpB
- Operator A may use those same resources (e.g., represented by resources 340 - a ) by first checking the channel for interference (e.g., LBT) and then transmitting data if the channel was determined to be clear.
- interference e.g., LBT
- Operator C may perform a medium sensing procedure and access the resources if available.
- two operators e.g., Operator A and Operator C
- the operators may also have sub-priorities assigned to them designed to determine which operator may gain access to resources if more than operator is attempting access simultaneously.
- a network operating entity may intend not to use a particular G-INT assigned to it, but may not send out an activity indication that conveys the intent not to use the resources.
- lower priority operating entities may be configured to monitor the channel to determine whether a higher priority operating entity is using the resources. If a lower priority operating entity determines through LBT or similar method that a higher priority operating entity is not going to use its G-INT resources, then the lower priority operating entities may attempt to access the resources on an opportunistic basis as described above.
- access to a G-INT or O-INT may be preceded by a reservation signal (e.g., request-to-send (RTS)/clear-to-send (CTS)), and the contention window (CW) may be randomly chosen between one and the total number of operating entities.
- a reservation signal e.g., request-to-send (RTS)/clear-to-send (CTS)
- CW contention window
- an operating entity may employ or be compatible with coordinated multipoint (CoMP) communications.
- CoMP coordinated multipoint
- an operating entity may employ CoMP and dynamic time division duplex (TDD) in a G-INT and opportunistic CoMP in an O-INT as needed.
- TDD dynamic time division duplex
- each sub-interval 320 includes a G-INT for one of Operator A, B, or C.
- one or more sub-intervals 320 may include resources that are neither reserved for exclusive use nor reserved for prioritized use (e.g., unassigned resources). Such unassigned resources may be considered an O-INT for any network operating entity, and may be accessed on an opportunistic basis as described above.
- each subframe 325 may contain 14 symbols (e.g., 250- ⁇ s for 60 kHz tone spacing). These subframes 325 may be standalone, self-contained Interval-Cs (ITCs) or the subframes 325 may be a part of a long ITC.
- An ITC may be a self-contained transmission starting with a downlink transmission and ending with a uplink transmission.
- an ITC may contain one or more subframes 325 operating contiguously upon medium occupation. In some cases, there may be a maximum of eight network operators in an A-INT 310 (e.g., with duration of 2 ms) assuming a 250- ⁇ s transmission opportunity.
- each sub-interval 320 may be occupied by a G-INT for that single network operating entity, or the sub-intervals 320 may alternate between G-INTs for that network operating entity and O-INTs to allow other network operating entities to enter.
- the sub-intervals 320 may alternate between G-INTs for the first network operating entity and G-INTs for the second network operating entity. If there are three network operating entities, the G-INT and O-INTs for each network operating entity may be designed as illustrated in FIG. 3 . If there are four network operating entities, the first four sub-intervals 320 may include consecutive G-INTs for the four network operating entities and the remaining two sub-intervals 320 may contain O-INTs. Similarly, if there are five network operating entities, the first five sub-intervals 320 may contain consecutive G-INTs for the five network operating entities and the remaining sub-interval 320 may contain an O-INT. If there are six network operating entities, all six sub-intervals 320 may include consecutive G-INTs for each network operating entity. It should be understood that these examples are for illustrative purposes only and that other autonomously determined interval allocations may be used.
- the coordination framework described with reference to FIG. 3 is for illustration purposes only.
- the duration of superframe 305 may be more or less than 20 ms.
- the number, duration, and location of sub-intervals 320 and subframes 325 may differ from the configuration illustrated.
- the types of resource designations e.g., exclusive, prioritized, unassigned
- the channel-state information (CSI) reporting from the UE to the network provides the network with information about the downlink channel conditions.
- Downlink channel-dependent scheduling depends on the downlink channel conditions.
- CSI may consist of one or several pieces of information, such as rank indicator (RI), precoding matrix indicator (PMI), channel quality information (CQI), CSI reference signal resource indicator (CRI), etc.
- RI rank indicator
- PMI precoding matrix indicator
- CQI channel quality information
- CRI CSI reference signal resource indicator
- P-CSI periodic CSI
- A-CSI aperiodic CSI
- P-CSI reports are generally delivered with a certain periodicity configured by the network.
- A-CSI reports are generally delivered when explicitly requested by the network through some form of signaling, such as a flag in an uplink scheduling grant.
- Uplink resources for CSI reporting in LTE include both PUCCH and PUSCH resources.
- P-CSI is generally delivered using a semi-statically configured PUCCH resource. If the UE has a valid uplink grant, P-CSI may be delivered on PUSCH as well.
- A-CSI is generally delivered via PUSCH, on a dynamically assigned resource.
- CSI components include RI, providing a recommendation on the transmission rank; PMI, indicating a preferred precoder conditioned on the number of layers indicated by the RI; CQI, suggesting the modulation-and-coding scheme (MCS) to achieve certain block error rates (BLER) with the recommended PMI/RI; and CRI, representing the selected one out of multiple pre-configured CSI-RS resources.
- RI providing a recommendation on the transmission rank
- PMI indicating a preferred precoder conditioned on the number of layers indicated by the RI
- CQI suggesting the modulation-and-coding scheme (MCS) to achieve certain block error rates (BLER) with the recommended PMI/RI
- BLER block error rates
- FIG. 4 is a block diagram illustrating transmission slots 40 in an NR network.
- the transmission slots 40 are generally divided into downlink-centric slots 400 and uplink-centric slots 401 .
- downlink control signaling initiates the transmission, followed by the data in the PDSCH, a short uplink duration of a short PUCCH then follows a guard period at the end of downlink-centric slot 400 .
- Uplink-centric slot 401 begins with a short downlink control signaling followed by a long uplink duration uplink data transmissions in PUSCH after a guard period.
- the uplink-centric slot 401 will end with an uplink common burst which contains a short PUCCH without guard period.
- A-CSI reporting may be used for on-demand CSI acquisition.
- A-CSI reporting may be used to report the link quality for a small number of antenna ports (e.g., multi-beam approach).
- the A-CSI report may be a lightweight CSI report (e.g., wideband, CQI/RI only).
- the A-CSI report may further deliver full CSI for a large number of antenna ports (e.g., single-beam approach).
- An uplink control information (UCI) can be up to hundreds of bits (e.g., subband Type II CSI for 32 ports).
- PUSCH based A-CSI reporting can be inefficient.
- A-CSI reporting is requested when there are no uplink data available for transmission.
- a CSI-only uplink grant may be scheduled for a UE.
- Such a grant may be limited by the downlink control channel capacity, such that these grants may carry uplink grants for UEs with uplink data and for UEs with CSI reports.
- triggering of the A-CSI reporting may be held until uplink data is available.
- the network cannot get CSI timely and the downlink channel-dependent scheduling may suffer accordingly.
- PUSCH may only be available in slots with a long uplink duration (e.g., no PUSCH in downlink-centric slot).
- A-CSI reporting cannot be supported if it is triggered in a downlink-centric slot.
- Various aspects of the present disclosure provide for triggering of A-CSI reporting using either uplink or downlink grants or by a group common DCI.
- FIG. 5 is a block diagram illustrating example blocks executed to implement one aspect of the present disclosure. The example blocks will also be described with respect to UE 115 as illustrated in FIG. 15 .
- FIG. 15 is a block diagram illustrating UE 115 configured according to one aspect of the present disclosure.
- UE 115 includes the structure, hardware, and components as illustrated for UE 115 of FIG. 2 .
- UE 115 includes controller/processor 280 , which operates to execute logic or computer instructions stored in memory 282 , as well as controlling the components of UE 115 that provide the features and functionality of UE 115 .
- Wireless radios 1500 a - r includes various components and hardware, as illustrated in FIG. 2 for eNB 105 , including modulator/demodulators 254 a - r , MIMO detector 256 , receive processor 258 , transmit processor 264 , and TX MIMO processor 266 .
- a UE receives a feedback configuration to report A-CSI feedback using a PUCCH.
- UE 115 receives a CSI report configuration identifier (ID), such as A-CSI feedback configuration 1501 , from a serving base station via antennas 252 a - r and wireless radios 1500 a - r .
- ID CSI report configuration identifier
- UE 115 can report lightweight A-CSI via short/long PUCCH or may report heavy A-CSI via short/long PUCCH.
- UE 115 will store A-CSI feedback configuration 1501 in memory 282 .
- the UE receives a CSI trigger to report A-CSI feedback, wherein the CSI trigger includes either a dedicated DCI for the A-CSI feedback or a group common DCI.
- the dedicated DCI may be either dedicated for downlink transmission or uplink transmission.
- UE 115 receives the CSI trigger from the base station via antennas 252 a - r and wireless radios 1500 a - r .
- the CSI trigger allows for UE 115 to identify PUCCH resources 1502 and store in memory 282 . UE 115 would then use PUCCH resources 1502 for transmitting the A-CSI feedback.
- the UE determines channel condition information associated with the A-CSI feedback in response to the CSI trigger.
- UE 115 executes measurement logic 1503 to measure and process each of the CSI processes triggered in by the CSI trigger.
- UE 115 under control of controller/processor 280 , executes A-CSI report generator to generate the A-CSI report with the determined CSI information.
- the PUCCH resources can be either a resource used for HARQ-ACK feedback, e.g., short PUCCH; or a semi-static configured PUCCH resource, e.g., either short PUCCH or long PUCCH.
- the PUCCH resource can be either semi-statically configured, or dynamically indicated.
- the UE reports the A-CSI feedback using the PUCCH.
- UE 115 will transmit the generated A-CSI feedback report and transmit to the base station via wireless radios 1500 a - r and antennas 252 a - r.
- FIG. 6 is a block diagram illustrating a gNB 105 a and UE 115 a configured according to one aspect of the present disclosure.
- a group-common DCI 601 can be used to trigger A-CSI reporting on PUCCH for a group of UEs.
- UE 115 a receives a CSI report configuration ID, such as A-CSI PUCCH configuration 600 , from gNB 105 a with at least one group ID which can be used to identify the group-common DCI.
- a CSI report configuration ID such as A-CSI PUCCH configuration 600
- A-CSI PUCCH configuration 600 configures UE 115 a with a csi-RNTI via an RRC from gNB 105 a , and the cyclic redundancy check (CRC) bits of group-common DCI 601 for requesting A-CSI from this UE 115 a is scrambled by the csi-RNTI.
- a UE can be configured with at least one codepoint in the group-common DCI.
- A-CSI PUCCH configuration 600 from gNB 105 a configures UE 115 a with a csi-Trigger-Index via RRC.
- the csi-Trigger-Index corresponds to a codepoint in group-common DCI 601 .
- the A-CSI trigger associated with the codepoint is used for requesting A-CSI reporting for UE 115 a .
- UE 115 a monitors group-common DCI 601 based on the configured csi-RNTI of A-CSI PUCCH configuration 600 and the A-CSI trigger associated with the configured csi-Trigger-Index.
- the A-CSI PUCCH configuration 600 may be associated with a CSI reporting setting, if multiple CSI reporting settings are configured to UE 115 a .
- Each A-CSI trigger of group-common DCI 601 includes at least following information: An indication of A-CSI request, e.g., a 1-bit field with 0 for no A-CSI report and 1 for A-CSI report.
- FIG. 7 is a block diagram illustrating gNB 105 a and UE 115 a configured according to one aspect of the present disclosure.
- an A-CSI trigger 700 may further include an indication of one PUCCH resource within the configured PUCCH resource set.
- A-CSI trigger 700 transmitted to UE 115 a from gNB 105 a includes the A-CSI request and a PUCCH resource index, which identifies which of PUCCH resources 701 that UE 115 a has been configured for is selected for the A-CSI reporting.
- FIG. 8 is a block diagram illustrating gNB 105 a and UE 115 a configured according to one aspect of the present disclosure.
- an A-CSI trigger 800 would include the A-CSI request and a PUCCH resource allocation.
- the PUCCH resource allocation would, itself, include e.g., timing offset between the PUCCH resource and the slot in which A-CSI trigger 800 is received, and a resource element location of the PUCCH resource.
- A-CSI trigger 800 sent by gNB 105 a to UE 115 a includes the A-CSI request and a PUCCH resource allocation which identifies the specific allocation information noted above.
- a set of PUCCH resources may be configured by higher layer signaling.
- An indication in the DCI may be used to select a PUCCH resource within the configured set.
- a single PUCCH resource may be indicated/allocated in the DCI, where the UE uses the same resource for multiple slots if the PUCCH reporting is split into multiple reports. For example, referring back to FIG. 6 , the allocation of the single PUCCH resource for use in the multiple slot transmission of the A-CSI feedback would be included in group-common DCI 601 at the codepoint(s) assigned to UE 115 a.
- a starting PUCCH resource may be indicated in the DCI, where the UE follows a pre-defined PUCCH resource hopping pattern to pick up PUCCH resources in the configured set of PUCCH resources. For example, group-common DCI would indicate the starting resource element for the PUCCH. UE 115 a would then report A-CSI beginning at this PUCCH starting location. In the subsequent slots for transmission, UE 115 a would use the predetermined hopping pattern for PUCCH resources.
- the hopping pattern noted in the second optional operation can be dynamically indicated as part of the CSI-trigger.
- Multiple PUCCH resource hopping patterns can be configured via RRC or medium access control (MAC) control element (CE).
- One of those patterns may be indicated by the DCI, such as through a field in the CSI trigger, or the hopping pattern can be separately indicated.
- group-common DCI would include the beginning location of the PUCCH resource and an indication of the hopping pattern to be used. This hopping pattern indication may be located at A-CSI Trigger 1 as allocated to UE 115 a at codepoint 1.
- FIG. 9 is a block diagram illustrating gNB 105 a and UE 115 a configured according to one aspect of the present disclosure.
- A-CSI reporting is based on aperiodic CSI-RS (A-CSI-RS)
- an A-CSI trigger 900 may include the A-CSI request, the PUCCH resource allocation, and further include an A-CSI-RS resource indication of one of the A-CSI-RS resources within the configured CSI-RS resources.
- Such an indication of A-CSI-RS resource may include an indication of the resource setting which contains the CSI-RS resource; and/or an indication of, within a resource setting, the CSI-RS resource set which contains the CSI-RS resource; and/or an indication of the CSI-RS resource within a resource setting and/or CSI-RS resource set.
- FIG. 10 is a block diagram illustrating gNB 105 a and UE 115 a configured according to one aspect of the present disclosure.
- the A-CSI feedback communications between gNB 105 a and UE 115 a may include a number of different A-CSI reporting levels 1000 of configuration and settings.
- the highest level of setting includes the A-CSI reporting setting, which identifies the configurations for A-CSI reporting.
- the next level provides CSI measurement settings, which identifying the measurement settings for processing the A-CSI feedback.
- the following level defines the sets of resource settings, which may define only specific CSI-RS resources or CSI-RS resource sets and the specific CSI-RS resources associated with the resource sets.
- FIG. 11 is a block diagram illustrating gNB 105 a and UE 115 a configured according to one aspect of the present disclosure.
- UE 115 a can be configured by gNB 105 a with for example, two or more codepoints, corresponding to two or more different CSI-RS resource sets or two different CSI-RS resources within a CSI-RS resource set. This allows implicit indication of the CSI-RS resource(s) used for CSI reporting to gNB 105 a .
- gNB 105 a transmits A-CSI PUCCH configuration 1102 to UE 115 a .
- A-CSI PUCCH configuration 1102 includes multiple CSI trigger indices that point UE 115 a to multiple codepoints in group common DCI 1101 .
- A-CSI PUCCH configuration 1102 includes multiple CSI configuration identifier (e.g., csi-Config0 or csi-Config1) that identify a CSI-RS resource set or sets, a CSI-RS resource, or other such reporting set levels of reporting set 1100 .
- csi-Config0 points UE 115 a to CSI-RS resource set A 2
- csi-Config1 points UE 115 a to CSI-RS resource B.b.
- A-CSI PUCCH configuration 1102 may be associated with various different CSI reporting settings.
- the CSI group can be associated with one or multiple component carriers (CCs) and/or bandwidth parts (BPs).
- the group csi-RNTI can be CC-specific or BP-specific (one group for one CC or BP).
- the CSI-RNTI within A-CSI PUCCH configuration 1102 may be associated with one or multiple CCs or BPs.
- a downlink configuration signal for PUCCH-reporting may be associated with a set of CCs or BPs.
- the A-CSI triggers associated with UE 115 a (A-CSI Trigger 0 and A-CSI Trigger 1) may include an identifier that identifies a particular set or subset of CCs or BPs.
- the CSI configuration signal (e.g., A-CSI PUCCH configuration 1102 ) can be an identifier for various levels of reporting set 1100 , such as a CSI-RS resource set, a CSI-RS resource, etc.
- FIG. 12 is a block diagram illustrating gNB 105 a and UE 115 a configured according to one aspect of the present disclosure.
- A-CSI group-common PDCCH can be separately configured.
- gNB 105 a sends A-CSI PUCCH configuration 1200 to UE 11 a to provide a CSI-RNTI for unscrambling the CRC of group common DCI 1201 , and the CSI-Trigger index for identifying which codepoint in group common DCI 1201 is allocated to UE 115 a .
- A-CSI Trigger 1 of codepoint 1 A-CSI Trigger 1 of codepoint 1
- a PUCCH format is included for UE 115 a .
- At least one configuration may be defined for A-CSI reporting using short PUCCH, and at least one configuration for A-CSI reporting using a long PUCCH.
- a first option would allow at least one configuration for each format, while, in a second option, the PUCCH format may be semi-statically configured, which may include a field to indicate the PUCCH format.
- Such PUCCH formats may be included within the PUCCH format field of A-CSI Trigger 1 for UE 115 a.
- a PUCCH format may further be either indicated in the CSI trigger or associated with the codepoint semi-statically.
- A-CSI Trigger 1 may further include an indication of a subset of CSI-RS ports which UE 115 a may use for channel measurement, and/or a subset of CSI-RS ports which UE 115 a may use for interference measurement.
- A-CSI Trigger 0 of codepoint 0 instead of the explicit port indication, the UE allocated to codepoint 0 may be associated with a particular subset of CSI-RS ports.
- a subset of CSI-RS ports may include a CSI-RS resource set which includes one or more CSI-RS resources, each of which CSI-RS resource may include one or more CSI-RS ports, a subset of CSI-RS ports in a given CSI-RS resource, or a subset of CSI-RS ports in a CSI-RS resource set.
- the CSI-RS ports of which a subset is defined may include any number of resources or resource sets that include an identifiable indication of CSI-RS ports.
- FIG. 13 is a block diagram illustrating gNB 105 a and UE 115 a configured according to one aspect of the present disclosure.
- Group-common A-CSI DCI 1301 from gNB 105 a can be used to trigger non-zero power (NZP) CSI-RS-based channel (CM) and interference measurement (IM).
- the A-CSI trigger may include a subset of CSI-RS ports which UE 115 a may use for channel measurement; and/or a subset of CSI-RS ports which UE 115 a may use for interference measurement.
- a common subsetting of CSI-RS ports can be shared by multiple A-CSI triggers in the same group-common DCI 1301 .
- the A-CSI request field in each A-CSI trigger may be omitted if the number of CSI-RS port subsets equals to the number of A-CSI triggers.
- the A-CSI request may be either implicitly indicated, e.g., if UE 115 a detects a group-common DCI for NZP-CSI-RS based channel/interference measure, it may report A-CSI; or jointly encoded with the CSI-RS subset index. For the example as shown FIG. 13 , if UE 115 a is configured with an X-port CSI-RS resource and X>8, UE 115 a may assume that the CSI-RS ports not in the CSI-RS subsets are not transmitted.
- group-common DCI 1301 can also be used to indicate partial ZP (or partial NZP) CSI-RS resource, such that, for an X-port CSI-RS resource, there are Y ports not transmitted.
- UE 115 a may adjust the PDSCH energy per resource element (EPRE) to CSI-RS EPRE ratio dynamically based on the partial ZP indication.
- EPRE PDSCH energy per resource element
- FIGS. 14A-14C are block diagrams illustrating gNB 105 a and UE 115 a configured according to aspects of the present disclosure. If UE 115 a is configured by gNB 105 a with both PUSCH and PUCCH-based A-CSI reporting, the set of A-CSI-RS resources for each reporting can be independently configured.
- FIG. 14A represents independent configuration in which PUSCH-based settings are configured for different resource settings than PUCCH-based settings.
- FIG. 14B represents an alternative, in which the set of A-CSI-RS resources for PUCCH based reporting can be a subset of the resources for PUSCH based A-CSI reporting.
- the independent configurations of PUSCH and PUCCH-based reporting may identify resources that are actually the same resources.
- the PUCCH-based A-CSI reporting may be dropped. If there are no overlapping on the associated uplink symbols, the UE may report both. When collisions between PUCCH-based A-CSI reporting and PUCCH-based P-CSI reporting occur, the PUCCH-based P-CSI reporting may be dropped since A-CSI generally has higher priority than P-CSI.
- a first aspect includes a non-transitory computer-readable medium having program code recorded thereon, the program code comprising:
- program code executable by a computer for causing the computer to receive, by a user equipment (UE), a feedback configuration to report aperiodic channel state information (A-CSI) feedback using a physical uplink control channel (PUCCH);
- UE user equipment
- A-CSI aperiodic channel state information
- PUCCH physical uplink control channel
- program code executable by the computer for causing the computer to receive, by the UE, a CSI trigger to report A-CSI feedback, wherein the CSI trigger includes one of: a dedicated downlink control indicator (DCI) for the A-CSI feedback or a group common DCI;
- DCI dedicated downlink control indicator
- program code executable by the computer for causing the computer to determine, by the UE, channel condition information associated with the A-CSI feedback in response to the CSI trigger;
- program code executable by the computer for causing the computer to report, by the UE to a base station, the A-CSI feedback using the PUCCH.
- the CSI trigger includes the dedicated DCI
- PUCCH resources allocated for the A-CSI feedback include one of:
- the CSI trigger includes the group common DCI
- PUCCH resources allocated for the A-CSI feedback include one of:
- the fourth aspect of the non-transitory computer-readable medium based on the third aspect further including:
- program code executable by the computer for causing the computer to identify, by the UE, the group common DCI using a group identifier received with the feedback configuration;
- program code executable by the computer for causing the computer to identify, by the UE, one or more codepoints of the group common DCI assigned to the UE, wherein the one or more codepoints are identified using a trigger index received with the feedback configuration.
- CSI report configuration identifier (ID)
- CSI-RS CSI reference signal
- the seventh aspect of the non-transitory computer-readable medium based on the sixth aspect further including:
- program code executable by the computer for causing the computer to omit the A-CSI request indication from the CSI trigger when the number of CSI-RS port subsets equals a number of A-CSI requests.
- NZP-CSI-RS non-zero power CSI-RS
- program code executable by the computer for causing the computer to divide the A-CSI feedback into a plurality of A-CSI reports for transmission over a plurality of slots;
- program code executable by the computer for causing the computer to transmit each report of the plurality of A-CSI reports in a corresponding slot of the plurality of slots using a same PUCCH resource identified in the CSI trigger in each of the plurality of slots.
- the tenth aspect of the non-transitory computer-readable medium based on the first aspect, wherein the program code executable by the computer for causing the computer to report includes:
- program code executable by the computer for causing the computer to divide the A-CSI feedback into a plurality of A-CSI reports for transmission over a plurality of slots;
- program code executable by the computer for causing the computer to transmit each report of the plurality of A-CSI reports over a configured set of PUCCH resources beginning at a first PUCCH resource identified in the CSI trigger and using a hopping pattern after the first PUCCH resource.
- CSI trigger includes a hopping pattern indicator identifying the hopping pattern.
- the feedback configuration includes configuration of a set of PUCCH resource hopping patterns
- the hopping pattern indicator identifies the hopping pattern from the set of PUCCH resource hopping patterns.
- the CSI trigger includes an indication of a A-CSI reference signal (A-CSI-RS) within a set of configured CSI-RS resources, wherein the indication includes one of:
- A-CSI-RS A-CSI reference signal
- an A-CSI configuration identifier identifying a resource setting, a CSI-RS resource set of the resource setting, a CSI-RS resource of the CSI-RS resource set.
- a CSI group corresponding to the group common DCI is associated with one of: one or more component carriers (CCs) or one or more bandwidth parts (BPs) within one or more CCs
- the seventeenth aspect of the non-transitory computer-readable medium based on the sixteenth aspect, wherein the feedback configuration is associated with one of: a set of CCs or a set of BPs.
- program code executable by the computer for causing the computer to review, by the UE, the CSI trigger for one or more identifiers identifying one of: a set of CCs or a set of BPs, associated with the feedback configuration, wherein the reporting the A-CSI feedback includes:
- different PUCCH formats wherein the different PUCCH formats include one of:
- the twentieth aspect of the non-transitory computer-readable medium based on the first aspect, wherein the UE uses a PUCCH configuration for A-CSI reporting for both a short PUCCH and a long PUCCH, wherein the PUCCH configuration is identified by one of: the CSI trigger, or a codepoint allocated to the UE that is associated with the PUCCH configuration.
- the twenty-third aspect of the non-transitory computer-readable medium based on the first aspect further including:
- program code executable by the computer for causing the computer to receive, by the UE, an additional feedback configuration to also report A-CSI feedback using a physical uplink shared channel (PUSCH), wherein feedback resources for the feedback configuration and the additional feedback configuration are one of:
- the feedback resources of the feedback configuration are a subset of the feedback resources of the additional feedback configuration.
- program code executable by the computer for causing the computer to detect, by the UE, a collision between the A-CSI feedback using the PUCCH and the A-CSI feedback using the PUSCH;
- program code executable by the computer for causing the computer to drop the A-CSI feedback on the PUCCH in response to the collision when associated uplink symbols of the A-CSI feedback overlap between the PUSCH and the PUCCH;
- program code executable by the computer for causing the computer to report the A-CSI feedback on both the PUCCH and the PUSCH when the associated uplink symbols of the A-CSI feedback do not overlap between the PUSCH and the PUCCH.
- program code executable by the computer for causing the computer to detect, by the UE, a collision between the A-CSI feedback using the PUCCH and a periodic CSI (P-CSI) feedback using the PUCCH;
- program code executable by the computer for causing the computer to drop the P-CSI feedback using the PUCCH.
- program code executable by the computer for causing the computer to detect, by the UE, a collision between one of: a P-CSI or A-CSI feedback using the PUCCH, and one or more of: hybrid automatic repeat request (HARQ) acknowledgement (HARQ-ACK) or scheduling request (SR) feedback using the PUCCH; and
- HARQ hybrid automatic repeat request
- HARQ-ACK hybrid automatic repeat request acknowledgement
- SR scheduling request
- program code executable by the computer for causing the computer to drop one of: the P-CSI or A-CSI feedback using the PUCCH.
- a twenty-eighth aspect is an apparatus configured for wireless communication, the apparatus comprising:
- the at least one processor is configured:
- the twenty-ninth aspect of the apparatus based on the twenty-eighth aspect includes,
- the CSI trigger includes the dedicated DCI
- PUCCH resources allocated for the A-CSI feedback include one of:
- the thirtieth aspect of the apparatus based on the twenty-eighth aspect includes,
- the CSI trigger includes the group common DCI
- PUCCH resources allocated for the A-CSI feedback include one of:
- the thirty-first aspect of the apparatus based on the thirtieth aspect includes, further including configuration of the at least one processor:
- the UE to identify, by the UE, one or more codepoints of the group common DCI assigned to the UE, wherein the one or more codepoints are identified using a trigger index received with the feedback configuration.
- the thirty-second aspect of the apparatus based on the twenty-eighth aspect includes, wherein the CSI trigger includes:
- CSI report configuration identifier (ID)
- the thirty-third aspect of the apparatus based on the thirty-second aspect includes, wherein the CSI trigger further includes:
- CSI-RS CSI reference signal
- the thirty-fourth aspect of the apparatus based on the thirty-third aspect includes, further including configuration of the at least one processor to omit the A-CSI request indication from the CSI trigger when the number of CSI-RS port subsets equals a number of A-CSI requests.
- the thirty-fifth aspect of the apparatus based on the thirty-second aspect includes, wherein the A-CSI request is one of:
- NZP-CSI-RS non-zero power CSI-RS
- the thirty-sixth aspect of the apparatus based on the twenty-eighth aspect includes, wherein the configuration of the at least one processor to report includes configuration of the at least one processor:
- the thirty-seventh aspect of the apparatus based on the twenty-eighth aspect includes, wherein the configuration of the at least one processor to report includes configuration of the at least one processor:
- the thirty-eighth aspect of the apparatus based on the thirty-seventh aspect includes, wherein CSI trigger includes a hopping pattern indicator identifying the hopping pattern.
- the thirty-ninth aspect of the apparatus based on the thirty-eighth aspect includes,
- the feedback configuration includes configuration of a set of PUCCH resource hopping patterns
- the hopping pattern indicator identifies the hopping pattern from the set of PUCCH resource hopping patterns.
- the fortieth aspect of the apparatus based on the twenty-eighth aspect includes, wherein the CSI trigger includes an indication of a A-CSI reference signal (A-CSI-RS) within a set of configured CSI-RS resources, wherein the indication includes one of:
- A-CSI-RS A-CSI reference signal
- the forty-first aspect of the apparatus based on the twenty-eighth aspect includes, wherein the feedback configuration includes configuration of two or more codepoints for the UE corresponding to two or more different CSI-RS resource sets or two or more different CSI-RS resources within a CSI-RS resource set.
- the forty-second aspect of the apparatus based on the forty-first aspect includes, wherein the feedback configuration further includes:
- an A-CSI configuration identifier identifying a resource setting, a CSI-RS resource set of the resource setting, a CSI-RS resource of the CSI-RS resource set.
- the forty-third aspect of the apparatus based on the twenty-eighth aspect includes, wherein a CSI group corresponding to the group common DCI is associated with one of: one or more component carriers (CCs) or one or more bandwidth parts (BPs) within one or more CCs
- CCs component carriers
- BPs bandwidth parts
- the forty-fourth aspect of the apparatus based on the forty-third aspect includes, wherein the feedback configuration is associated with one of: a set of CCs or a set of BPs.
- the forty-fifth aspect of the apparatus based on the forty-fourth aspect includes, further including configuration of the at least one processor to review, by the UE, the CSI trigger for one or more identifiers identifying one of: a set of CCs or a set of BPs, associated with the feedback configuration, wherein the reporting the A-CSI feedback includes configuration of the at least one processor:
- the forty-sixth aspect of the apparatus based on the twenty-eighth aspect includes, wherein the group common DCI includes a PUCCH configuration for A-CSI reporting using one of:
- different PUCCH formats wherein the different PUCCH formats include one of:
- the forty-seventh aspect of the apparatus based on the twenty-eighth aspect includes, wherein the UE uses a PUCCH configuration for A-CSI reporting for both a short PUCCH and a long PUCCH, wherein the PUCCH configuration is identified by one of: the CSI trigger, or a codepoint allocated to the UE that is associated with the PUCCH configuration.
- the forty-eighth aspect of the apparatus based on the twenty-eighth aspect includes, wherein the CSI trigger includes a CSI-RS port indicator indicating at least one of:
- the forty-ninth aspect of the apparatus based on the twenty-eighth aspect includes, wherein the CSI trigger includes identification of a subset of CSI-RS ports for channel measurement and interference measurement, wherein the subset of CSI-RS ports may be shared with additional CSI triggers of the group common DCI.
- the fiftieth aspect of the apparatus based on the twenty-eighth aspect includes, further including configuration of the at least one processor to receive, by the UE, an additional feedback configuration to also report A-CSI feedback using a physical uplink shared channel (PUSCH), wherein feedback resources for the feedback configuration and the additional feedback configuration are one of:
- the feedback resources of the feedback configuration are a subset of the feedback resources of the additional feedback configuration.
- the fifty-first aspect of the apparatus based on the fiftieth aspect includes, further including configuration of the at least one processor:
- the fifty-second aspect of the apparatus based on the fiftieth aspect includes, further including configuration of the at least one processor:
- the fifty-third aspect of the apparatus based on the twenty-eighth aspect includes, further including configuration of the at least one processor:
- HARQ hybrid automatic repeat request
- HARQ-ACK hybrid automatic repeat request acknowledgement
- SR scheduling request
- the fifty-fourth aspect of the apparatus includes any combination of the twenty-eighth though fifty-third aspects.
- the functional blocks and modules in FIG. 5 may comprise processors, electronics devices, hardware devices, electronics components, logical circuits, memories, software codes, firmware codes, etc., or any combination thereof.
- DSP digital signal processor
- ASIC application specific integrated circuit
- FPGA field programmable gate array
- a general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine.
- a processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
- a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
- An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium.
- the storage medium may be integral to the processor.
- the processor and the storage medium may reside in an ASIC.
- the ASIC may reside in a user terminal.
- the processor and the storage medium may reside as discrete components in a user terminal.
- the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
- Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. Computer-readable storage media may be any available media that can be accessed by a general purpose or special purpose computer.
- such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
- a connection may be properly termed a computer-readable medium.
- the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, or digital subscriber line (DSL), then the coaxial cable, fiber optic cable, twisted pair, or DSL, are included in the definition of medium.
- DSL digital subscriber line
- Disk and disc includes compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.
- the term “and/or,” when used in a list of two or more items, means that any one of the listed items can be employed by itself, or any combination of two or more of the listed items can be employed.
- the composition can contain A alone; B alone; C alone; A and B in combination; A and C in combination; B and C in combination; or A, B, and C in combination.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
-
- acknowledgement feedback resources; or
- semi-statically configured resources.
-
- semi-statically configured resources; or
- dynamically indicated resources.
-
- an index of one of a plurality of PUCCH resources configured for the UE; and
- an allocation of PUCCH resources for the A-CSI feedback, wherein the allocation includes at least one of a starting location of the PUCCH resources and a timing offset between the PUCCH resources and a slot in which the trigger is received.
-
- program code executable by the computer for causing the computer to report the A-CSI feedback for each of the one of: the set of CCs or the set of BPs using a set of PUCCH resources configured for the one of: the set of CCs or the set of BPs; and
- program code executable by the computer for causing the computer to report the A-CSI feedback for one of all CCs or all BPs when the UE fails to detect the identifiers.
-
- at least one PUCCH format for each of the different PUCCH formats; or
- a PUCCH format configuration including an indicator field identifying each of the different PUCCH formats.
-
- to receive, by a user equipment (UE), a feedback configuration to report aperiodic channel state information (A-CSI) feedback using a physical uplink control channel (PUCCH);
- to receive, by the UE, a CSI trigger to report A-CSI feedback, wherein the CSI trigger includes one of: a dedicated downlink control indicator (DCI) for the A-CSI feedback or a group common DCI;
- to determine, by the UE, channel condition information associated with the A-CSI feedback in response to the CSI trigger; and
- to report, by the UE to a base station, the A-CSI feedback using the PUCCH.
-
- acknowledgement feedback resources; or
- semi-statically configured resources.
-
- semi-statically configured resources; or
- dynamically indicated resources.
-
- an index of one of a plurality of PUCCH resources configured for the UE; and
- an allocation of PUCCH resources for the A-CSI feedback, wherein the allocation includes at least one of a starting location of the PUCCH resources and a timing offset between the PUCCH resources and a slot in which the trigger is received.
-
- at least one PUCCH format for each of the different PUCCH formats; or
- a PUCCH format configuration including an indicator field identifying each of the different PUCCH formats.
-
- a subset of channel CSI-RS ports configured for channel measurement; and
- a subset of interference CSI-RS ports configured for interference measurement.
Claims (29)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
WOPCT/CN2017/088598 | 2017-06-16 | ||
PCT/CN2017/088598 WO2018227538A1 (en) | 2017-06-16 | 2017-06-16 | Reporting aperiodic csi via pucch |
PCT/CN2018/091449 WO2018228523A1 (en) | 2017-06-16 | 2018-06-15 | Reporting aperiodic csi via pucch |
Publications (2)
Publication Number | Publication Date |
---|---|
US20200178240A1 US20200178240A1 (en) | 2020-06-04 |
US11356989B2 true US11356989B2 (en) | 2022-06-07 |
Family
ID=64659494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/615,534 Active US11356989B2 (en) | 2017-06-16 | 2018-06-15 | Reporting aperiodic CSI via PUCCH |
Country Status (4)
Country | Link |
---|---|
US (1) | US11356989B2 (en) |
EP (1) | EP3639428A4 (en) |
CN (2) | CN117062238A (en) |
WO (2) | WO2018227538A1 (en) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019051634A1 (en) * | 2017-09-12 | 2019-03-21 | Qualcomm Incorporated | Methods and apparatus for csi-rs port subset indication |
US11595952B2 (en) * | 2018-04-27 | 2023-02-28 | Qualcomm Incorporated | Aperiodic channel state information sharing across user equipment |
WO2020002631A1 (en) * | 2018-06-28 | 2020-01-02 | Sony Corporation | Ultra reliable and low latency communications multi-level pre-emption indication |
TWI697244B (en) * | 2018-08-07 | 2020-06-21 | 財團法人資訊工業策進會 | User equipment and base station for mobile communication system |
US11711813B2 (en) * | 2018-08-10 | 2023-07-25 | Intel Corporation | Downlink control channel signaling for an aperiodic channel state information trigger |
CN111417192B (en) * | 2019-01-04 | 2023-03-17 | 大唐移动通信设备有限公司 | Transmission method, device, base station and terminal for aperiodic Channel State Information (CSI) |
CN111417191A (en) * | 2019-01-04 | 2020-07-14 | 电信科学技术研究院有限公司 | Information transmission method, terminal and network equipment |
CN111431682B (en) * | 2019-01-10 | 2022-02-08 | 华为技术有限公司 | Communication method, communication device, and storage medium |
EP4094527A4 (en) * | 2020-01-20 | 2023-10-25 | Qualcomm Incorporated | Signaling aspects of aperiodic csi reporting triggered by a downlink grant |
US20210235302A1 (en) * | 2020-01-23 | 2021-07-29 | Qualcomm Incorporated | Channel state information scheduling request |
EP4104333A1 (en) * | 2020-02-13 | 2022-12-21 | Lenovo (Singapore) Pte. Ltd. | Aperiodic channel state information for ultra-reliable low-latency communication |
WO2021098059A1 (en) * | 2020-02-14 | 2021-05-27 | Zte Corporation | Channel state information feedback information transmission and configuration |
WO2021168608A1 (en) * | 2020-02-24 | 2021-09-02 | Qualcomm Incorporated | A-csi transmission with slot aggregation |
CN113518462B (en) * | 2020-04-10 | 2023-03-24 | 北京紫光展锐通信技术有限公司 | Method for triggering aperiodic CSI reporting, reporting method, reporting device and medium |
CN113518376B (en) * | 2020-04-10 | 2022-12-13 | 北京紫光展锐通信技术有限公司 | Method for indicating aperiodic CSI priority, CSI reporting method, device and medium |
CN115398830A (en) * | 2020-04-16 | 2022-11-25 | 联想(新加坡)私人有限公司 | Channel state information processing and reporting |
US11799531B2 (en) * | 2020-04-24 | 2023-10-24 | Qualcomm Incorporated | Group-common downlink control information |
EP4144016A4 (en) * | 2020-04-30 | 2023-12-27 | Qualcomm Incorporated | Acknowledgement location and timing for group-common downlink control information |
US11871415B2 (en) | 2020-06-30 | 2024-01-09 | Comcast Cable Communications, Llc | Beam indication for wireless devices |
WO2022028491A1 (en) * | 2020-08-07 | 2022-02-10 | FG Innovation Company Limited | Apparatus and method for aperiodic channel state information transmission |
WO2022027571A1 (en) * | 2020-08-07 | 2022-02-10 | Qualcomm Incorporated | Triggering aperiodic channel state information reports on physical uplink control channel using a zero power channel state information resource signal trigger |
WO2022031487A1 (en) * | 2020-08-07 | 2022-02-10 | Intel Corporation | Channel state information accuracy in nr urllc |
WO2022040824A1 (en) * | 2020-08-22 | 2022-03-03 | Qualcomm Incorporated | Requesting aperiodic channel state information reporting by a user equipment |
WO2022079614A1 (en) * | 2020-10-12 | 2022-04-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Pucch resources for aperiodic channel state information |
WO2022079607A1 (en) * | 2020-10-12 | 2022-04-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Priority handling for aperiodic csi on pucch |
CN114337962A (en) * | 2020-10-12 | 2022-04-12 | 北京紫光展锐通信技术有限公司 | CSI report transmission method, DCI transmission method and related products |
CN114765798A (en) * | 2021-01-13 | 2022-07-19 | 维沃移动通信有限公司 | Channel information sending method, channel information receiving method and related equipment |
US11665773B2 (en) * | 2021-03-03 | 2023-05-30 | Qualcomm Incorporated | Resource based periodic communication cancellation |
US20220286177A1 (en) * | 2021-03-08 | 2022-09-08 | Samsung Electronics Co., Ltd. | Method and apparatus for reporting channel state information |
CN113228552B (en) * | 2021-03-29 | 2023-02-28 | 北京小米移动软件有限公司 | Beam measurement method, device, communication equipment and storage medium |
WO2023033813A1 (en) * | 2021-08-31 | 2023-03-09 | Intel Corporation | Group-based channel state information reference signal (csi)-rs) transmission |
WO2023080734A1 (en) * | 2021-11-05 | 2023-05-11 | 엘지전자 주식회사 | Method and device for transmitting and receiving group-common information in wireless communication system |
Citations (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102006624A (en) | 2010-11-29 | 2011-04-06 | 中兴通讯股份有限公司 | Base station and method for informing trigger patterns of non-periodic channel state information (CSI) reports thereof |
US20130028182A1 (en) | 2011-02-18 | 2013-01-31 | Qualcomm Incorporated | Implicitly linking aperiodic channel state information (a-csi) reports to csi-reference signal (csi-rs) resources |
US20140086155A1 (en) * | 2011-09-26 | 2014-03-27 | Texas Instruments Incorporated | METHOD AND APPARATUS FOR CSI FEEDBACK IN CoMP (COORDINATED MULTI-POINT) SYSTEMS |
CN104038312A (en) | 2013-03-08 | 2014-09-10 | 中兴通讯股份有限公司 | Method and apparatus for determining instruction signaling of channel measurement pilot frequency, and channel state information feedback method and apparatus |
US20150103774A1 (en) | 2012-05-31 | 2015-04-16 | Ntt Docomo, Inc. | Radio communication system, radio base station apparatus and radio communication method |
WO2016089106A1 (en) | 2014-12-04 | 2016-06-09 | Lg Electronics Inc. | Method for feeding back partial csis from user equipment in wireless communication system and an apparatus for the same |
US20160219618A1 (en) | 2015-01-27 | 2016-07-28 | Qualcomm Incorporated | Triggering a group acknowledgement/negative acknowledgement or channel state information |
WO2016121428A1 (en) | 2015-01-28 | 2016-08-04 | シャープ株式会社 | Terminal device, base station device, communication method, and integrated circuit |
WO2016163819A1 (en) | 2015-04-08 | 2016-10-13 | 엘지전자 주식회사 | Method for reporting channel state and apparatus therefor |
WO2016182363A1 (en) | 2015-05-12 | 2016-11-17 | 엘지전자 주식회사 | Method for reporting channel state in wireless communication system and apparatus therefor |
CN106301720A (en) | 2015-05-14 | 2017-01-04 | 北京三星通信技术研究有限公司 | The method and apparatus of transmitting uplink control information |
CN106487484A (en) | 2015-08-25 | 2017-03-08 | 中兴通讯股份有限公司 | information configuration, information feedback method, base station and terminal |
CN106656280A (en) | 2015-07-20 | 2017-05-10 | 电信科学技术研究院 | Feedback and control method and device of channel state information (CSI) |
US20170195031A1 (en) * | 2015-12-30 | 2017-07-06 | Samsung Electronics Co., Ltd | Method and apparatus for channel state information reference signal (csi-rs) |
US20180063736A1 (en) * | 2014-11-14 | 2018-03-01 | Interdigital Patent Holdings, Inc. | Methods and procedures for channel measurements and reporting mechanisms for long term evolution (lte) operation in an unlicensed band |
US20180092149A1 (en) * | 2014-11-18 | 2018-03-29 | Intel Corporation | Apparatus configured to report aperiodic channel state information for dual connectivity |
US20180310193A1 (en) * | 2015-11-06 | 2018-10-25 | Intel IP Corporation | Channel state information (csi) measurements and csi reporting in licensed assisted access (laa) |
US20190123801A1 (en) * | 2016-06-23 | 2019-04-25 | Lg Electronics Inc. | Method for reporting channel state in wireless communication system and device therefor |
US20200077416A1 (en) * | 2018-08-28 | 2020-03-05 | Qualcomm Incorporated | Uplink channel multiplexing and piggybacking |
US20200177254A1 (en) * | 2017-06-14 | 2020-06-04 | Sony Corporation | Apparatus and method for determining whether to provide a csi report |
US20200295905A1 (en) * | 2017-09-29 | 2020-09-17 | Ntt Docomo, Inc. | User terminal and radio communication method |
US20200295903A1 (en) * | 2017-10-02 | 2020-09-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Pucch resource indication for csi and harq feedback |
US20200367244A1 (en) * | 2017-11-15 | 2020-11-19 | Lg Electronics Inc. | Method for terminal transmitting aperiodic channel state information in wireless communication system, and terminal that uses the method |
US20200382256A1 (en) * | 2018-01-12 | 2020-12-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Channel state information reporting without uplink shared channel |
US10863494B2 (en) * | 2018-01-22 | 2020-12-08 | Apple Inc. | Control signaling for uplink multiple input multiple output, channel state information reference signal configuration and sounding reference signal configuration |
-
2017
- 2017-06-16 WO PCT/CN2017/088598 patent/WO2018227538A1/en active Application Filing
-
2018
- 2018-06-15 EP EP18817258.9A patent/EP3639428A4/en active Pending
- 2018-06-15 CN CN202311103695.1A patent/CN117062238A/en active Pending
- 2018-06-15 WO PCT/CN2018/091449 patent/WO2018228523A1/en active Application Filing
- 2018-06-15 US US16/615,534 patent/US11356989B2/en active Active
- 2018-06-15 CN CN201880039412.2A patent/CN110741580A/en active Pending
Patent Citations (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102006624A (en) | 2010-11-29 | 2011-04-06 | 中兴通讯股份有限公司 | Base station and method for informing trigger patterns of non-periodic channel state information (CSI) reports thereof |
US20130028182A1 (en) | 2011-02-18 | 2013-01-31 | Qualcomm Incorporated | Implicitly linking aperiodic channel state information (a-csi) reports to csi-reference signal (csi-rs) resources |
US20140086155A1 (en) * | 2011-09-26 | 2014-03-27 | Texas Instruments Incorporated | METHOD AND APPARATUS FOR CSI FEEDBACK IN CoMP (COORDINATED MULTI-POINT) SYSTEMS |
US20150103774A1 (en) | 2012-05-31 | 2015-04-16 | Ntt Docomo, Inc. | Radio communication system, radio base station apparatus and radio communication method |
CN104038312A (en) | 2013-03-08 | 2014-09-10 | 中兴通讯股份有限公司 | Method and apparatus for determining instruction signaling of channel measurement pilot frequency, and channel state information feedback method and apparatus |
US20160029238A1 (en) | 2013-03-08 | 2016-01-28 | Zte Corporation | Method and Device for Determining Indication Signalling of Pilot Signal for Channel Measurement and Method and Device for Feeding Back CSI |
US20180063736A1 (en) * | 2014-11-14 | 2018-03-01 | Interdigital Patent Holdings, Inc. | Methods and procedures for channel measurements and reporting mechanisms for long term evolution (lte) operation in an unlicensed band |
US20180092149A1 (en) * | 2014-11-18 | 2018-03-29 | Intel Corporation | Apparatus configured to report aperiodic channel state information for dual connectivity |
WO2016089106A1 (en) | 2014-12-04 | 2016-06-09 | Lg Electronics Inc. | Method for feeding back partial csis from user equipment in wireless communication system and an apparatus for the same |
US20160219618A1 (en) | 2015-01-27 | 2016-07-28 | Qualcomm Incorporated | Triggering a group acknowledgement/negative acknowledgement or channel state information |
WO2016121428A1 (en) | 2015-01-28 | 2016-08-04 | シャープ株式会社 | Terminal device, base station device, communication method, and integrated circuit |
EP3282629A1 (en) | 2015-04-08 | 2018-02-14 | LG Electronics Inc. | Method for reporting channel state and apparatus therefor |
WO2016163819A1 (en) | 2015-04-08 | 2016-10-13 | 엘지전자 주식회사 | Method for reporting channel state and apparatus therefor |
WO2016182363A1 (en) | 2015-05-12 | 2016-11-17 | 엘지전자 주식회사 | Method for reporting channel state in wireless communication system and apparatus therefor |
US20180097603A1 (en) | 2015-05-12 | 2018-04-05 | Lg Electronics Inc. | Method for reporting channel state in wireless communication system and apparatus therefor |
CN106301720A (en) | 2015-05-14 | 2017-01-04 | 北京三星通信技术研究有限公司 | The method and apparatus of transmitting uplink control information |
CN106656280A (en) | 2015-07-20 | 2017-05-10 | 电信科学技术研究院 | Feedback and control method and device of channel state information (CSI) |
CN106487484A (en) | 2015-08-25 | 2017-03-08 | 中兴通讯股份有限公司 | information configuration, information feedback method, base station and terminal |
US20180310193A1 (en) * | 2015-11-06 | 2018-10-25 | Intel IP Corporation | Channel state information (csi) measurements and csi reporting in licensed assisted access (laa) |
US20170195031A1 (en) * | 2015-12-30 | 2017-07-06 | Samsung Electronics Co., Ltd | Method and apparatus for channel state information reference signal (csi-rs) |
US20190123801A1 (en) * | 2016-06-23 | 2019-04-25 | Lg Electronics Inc. | Method for reporting channel state in wireless communication system and device therefor |
US20200177254A1 (en) * | 2017-06-14 | 2020-06-04 | Sony Corporation | Apparatus and method for determining whether to provide a csi report |
US11139877B2 (en) * | 2017-06-14 | 2021-10-05 | Sony Corporation | Apparatus and method for determining whether to provide a CSI report |
US20200295905A1 (en) * | 2017-09-29 | 2020-09-17 | Ntt Docomo, Inc. | User terminal and radio communication method |
US20200295903A1 (en) * | 2017-10-02 | 2020-09-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Pucch resource indication for csi and harq feedback |
US20200367244A1 (en) * | 2017-11-15 | 2020-11-19 | Lg Electronics Inc. | Method for terminal transmitting aperiodic channel state information in wireless communication system, and terminal that uses the method |
US20200382256A1 (en) * | 2018-01-12 | 2020-12-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Channel state information reporting without uplink shared channel |
US10863494B2 (en) * | 2018-01-22 | 2020-12-08 | Apple Inc. | Control signaling for uplink multiple input multiple output, channel state information reference signal configuration and sounding reference signal configuration |
US20200077416A1 (en) * | 2018-08-28 | 2020-03-05 | Qualcomm Incorporated | Uplink channel multiplexing and piggybacking |
Non-Patent Citations (9)
Title |
---|
International Search Report and Written Opinion—PCT/CN2017/088598—ISA/EPO—dated Mar. 6, 2018. |
International Search Report and Written Opinion—PCT/CN2018/091449—ISA/EPO—dated Aug. 29, 2018. |
QUALCOMM INCORPORATED: "CSI Multiplexing with HARQ-ACK", 3GPP DRAFT; R1-124436 CSI MULTIPLEXING WITH ACK, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. San Diego, USA; 20121008 - 20121012, R1-124436 CSI multiplexing with ACK, 29 September 2012 (2012-09-29), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP050662328 |
QUALCOMM INCORPORATED: "Remaining aspects of PUCCH on SCell", 3GPP DRAFT; R1-152772, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Fukuoka, Japan; 20150525 - 20150529, R1-152772, 24 May 2015 (2015-05-24), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP050969368 |
Qualcomm Incorporated: "CSI Multiplexing with HARQ-ACK", 3GPP Draft; 3GPP TSG RAN WG1 #70bis, R1-124436 CSI Multiplexing with ACK, 3rd Generation Partnership Project (3GPP), Mobile Competence Centre, 650, Route Des Lucioles; F-06921 Sophia-Antipolis Cedex; France, vol. RAN WG1, No. San Diego, USA; Oct. 8, 2012-Oct. 12, 2012, Sep. 29, 2012 (Sep. 29, 2012), XP050662328, pp. 1-3, Retrieved from the Internet: URL: http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_70b/Docs/, [retrieved on Sep. 29, 2012], Sections 1. 2. |
Qualcomm Incorporated: "Remaining Aspects of PUCCH on SCell", 3GPP Draft; R1-152772, 3GPP TSG RAN WG1 #81, 3rd Generation Partnership Project (3GPP), Mobile Competence Centre; 650, Route Des Lucioles; F-06921 Sophia-Antipolis Cedex; France, vol. RAN WG1. No. Fukuoka. Japan, May 25, 2015-May 29, 2015, May 24, 2015 (May 24, 2015), XP050969368, pp. 1-2, Retrieved from the Internet: URL: http://www.3gpp.org/ftp/Meetings_3GPP_SYNC/RAN1/Docs/ [retrieved on May 24, 2015], Section 2. |
Qualcomm Incorporated: "Remaining Aspects of PUCCH on SCell", 3GPP Draft; RI-152772, 3GPP TSG RAN WG1 #81,3rd Generation Partnership Project (3GPP), Mobile Competence Centre; 650, Route Des Lucioles; F-06921 Sophia-Antipolis Cedex; France, vol. RAN WG1. No. Fukuoka. Japan, May 25, 2015-May 29, 2015, May 24, 2015 (May 24, 2015), XP050969368, pp. 1-2, Retrieved from the Internet: URL: http://www.3gpp.org/ftp/Meetings 3GPP_SYNC/RAN1/Docs/[retrieved on May 24, 2015], Section 2. |
Samsung: "Discussions on CSI Measurements and Reporting for NR", 3GPP TSG RAN WG1 Meeting #89, R1-1707959, Hangzhou, P.R. China May 15-19, 2017, 7 Pages. |
Supplementary European Search Report—18817258.9—Search Authority—Munich—dated Feb. 9, 2021. |
Also Published As
Publication number | Publication date |
---|---|
EP3639428A1 (en) | 2020-04-22 |
US20200178240A1 (en) | 2020-06-04 |
EP3639428A4 (en) | 2021-03-10 |
CN117062238A (en) | 2023-11-14 |
WO2018227538A1 (en) | 2018-12-20 |
CN110741580A (en) | 2020-01-31 |
WO2018228523A1 (en) | 2018-12-20 |
WO2018228523A9 (en) | 2021-02-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11356989B2 (en) | Reporting aperiodic CSI via PUCCH | |
US11317443B2 (en) | Subband based uplink access for NR-SS | |
US11678333B2 (en) | Methods and apparatus for bandwidth part enhancement | |
US10912129B2 (en) | SSB multiplexing and RMSI monitoring in NR-U | |
US11395345B2 (en) | PRACH configuration on NR-U | |
US11569878B2 (en) | PMI feedback for type II CSI feedback in NR-MIMO | |
US11595156B2 (en) | Timing considerations for AUL-DFI | |
US20220263601A1 (en) | Hybrid automatic repeat request acknowledgement feedback enhancements for new radio-unlicensed | |
US10912097B2 (en) | Priority class indication for base station MCOT sharing for AUL | |
US11659593B2 (en) | Procedures for autonomous uplink transmissions | |
US20200092070A1 (en) | Signaling design for multiple aperiodic csi feedback | |
US20220141832A1 (en) | Cbg indication with multi-tti grant | |
US10945152B2 (en) | Base station contention window update with AUL in TxOP | |
US11368259B2 (en) | Xcarrier virtual single cell operation |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FEPP | Fee payment procedure |
Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: APPLICATION DISPATCHED FROM PREEXAM, NOT YET DOCKETED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: AWAITING TC RESP., ISSUE FEE NOT PAID |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: AWAITING TC RESP, ISSUE FEE PAYMENT VERIFIED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |